Update: Discussion has moved on to a new thread.
The hiatus is over with today's publication of chapter 73, and the previous thread is approaching the 500-comment threshold, so let's start a new Harry Potter and the Methods of Rationality discussion thread. This is the place to discuss Eliezer Yudkowsky's Harry Potter fanfic and anything related to it.
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system. Also: one, two, three, four, five, six, seven. The fanfiction.net author page is the central location for information about updates and links to HPMOR-related goodies, and AdeleneDawner has kept an archive of Author's Notes.
As a reminder, it's often useful to start your comment by indicating which chapter you are commenting on.
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically:
You do not need to rot13 anything about HP:MoR or the original Harry Potter series unless you are posting insider information from Eliezer Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).
If there is evidence for X in MOR and/or canon then it's fine to post about X without rot13, even if you also have heard privately from Eliezer that X is true. But you should not post that "Eliezer said X is true" unless you use rot13.
Part of the time when I was reading Deathly Hallows, and all of the time I was reading MoR I always expected Harry or at least SOMEONE else to act like Kiritsugu from Fate/Zero. Imagine: Enchanted portkeys with no destination yet programmed in attached to home made bombs, flash-bang grenades as a staple in wizarding duels to disrupt aiming/concentration, to say nothing of the videogameesque ability to actually carry around an entire armory with you or heal yourself much quicker EVEN IF YOU DON'T USE MAGIC.
(For those of you who don't know, Kiritsugu is a mage assassin who takes advantage of the Magic Association's technophobia and uses weapons as a regular part of the kit: Mages aren't going to defend against you if you're a mile off with a sniper rifle and they aren't going to defend against landmines if they don't know they exist!)
Edit: Actually, scratch the Kiritsugu idea I just want Neville to cast a shield charm of some sort at his feet so he can rocket jump from staircase to staircase at some point. Pity Quake 2 is five years in the future.
Yes! Rocket jumping Neville please! In fact, the more of Neville fighting stuff the better.